patch 8.0.0423: changing 'cinoptions' does not always work

Problem:    The effect of adding "#" to 'cinoptions' is not always removed.
            (David Briscoe)
Solution:   Reset b_ind_hash_comment. (Christian Brabandt, closes #1475)
diff --git a/src/testdir/test3.in b/src/testdir/test3.in
index e8648d3..9e66436 100644
--- a/src/testdir/test3.in
+++ b/src/testdir/test3.in
Binary files differ